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MX612 / MX612E / MX08H / MX08 Brushed DC Motor Driver IC — SOP-8, H-Bridge (5-Pack)
MX612 / MX612E / MX08H / MX08 Brushed DC Motor Driver IC SOP-8, H-Bridge (5-Pack)
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MX612 / MX612E / MX08H / MX08 Brushed DC Motor Driver IC — SOP-8, H-Bridge (5-Pack)
The MX612, MX612E, MX08H, and MX08 are SOP-8 H-bridge motor driver ICs designed for bidirectional control of small brushed DC motors. Integrating four power MOSFETs in a full H-bridge configuration with logic-level control inputs, they enable forward, reverse, brake, and coast operation from a single SOP-8 package. Suitable for Arduino and ESP32 robotics projects requiring compact SMD motor drive without external discrete MOSFETs.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOP-8 (SMD) |
| Topology | Full H-bridge (4 integrated MOSFETs) |
| Motor Type | Brushed DC motor (bidirectional) |
| Control Interface | Logic-level inputs (IN1, IN2) + PWM enable |
| Protection | Thermal shutdown, overcurrent protection |
| Operating Temperature | -40°C to +85°C |
| Quantity | 5 pieces |
Variant Overview
| Part Number | Key Feature | Best For |
|---|---|---|
| MX612 | Standard H-bridge motor driver | General small DC motor control |
| MX612E | Enhanced version, lower RDS(on) | Higher efficiency motor drive |
| MX08H | High-current variant | Higher-torque small motors |
| MX08 | Standard variant | General robotics and toy motor control |
Why Choose MX612 / MX08H?
- Integrated H-bridge — no external MOSFETs or diodes needed, minimal BOM
- SOP-8 compact package — small footprint for compact robot and toy PCB designs
- Logic-level control — directly controlled by Arduino/ESP32 GPIO pins
- PWM speed control — enable pin accepts PWM for variable motor speed
- Thermal + OCP protection — prevents damage from motor stall or overload
Compatible With / Common Use Cases
- Arduino robot car: Two MX612 ICs for left and right motor drive on a 2WD robot chassis
- ESP32 motor control: PWM speed control via ESP32 LEDC peripheral + direction via GPIO
- Toy motor repair: Replacement for failed H-bridge IC in RC toys and small appliances
- Conveyor belt control: Small DC motor bidirectional drive for miniature conveyor systems
- Camera gimbal: Brushed DC motor drive for 2-axis gimbal stabilization
Frequently Asked Questions
Q: How do I control motor direction and speed with MX612 from Arduino?
A: Connect IN1 and IN2 to two Arduino digital pins, EN (enable) to a PWM-capable pin. For forward: IN1=HIGH, IN2=LOW, EN=PWM duty cycle (0–255). For reverse: IN1=LOW, IN2=HIGH, EN=PWM. For brake: IN1=HIGH, IN2=HIGH. For coast: EN=LOW. Use analogWrite(enPin, speed) for speed control.
Q: What is the maximum motor current for MX612?
A: Refer to the MX612 datasheet for the exact continuous current rating — typically 1–2A for SOP-8 H-bridge ICs. For motors drawing more than 1A, use a higher-current driver (L298N for up to 2A per channel, DRV8833 for up to 1.5A, TB6612FNG for up to 1.2A). Always check the motor stall current against the driver rating.
Q: Can MX612E replace L9110S or DRV8833 in an existing design?
A: Only if the pinout and voltage/current ratings match. SOP-8 H-bridge ICs are not universally pin-compatible. L9110S, DRV8833, and MX612 have different pinouts. Always compare datasheets before substituting. For a well-documented alternative, DRV8833 (TI) or TB6612FNG (Toshiba) have extensive application notes.
Package Contents
- 5× MX612 / MX612E / MX08H / MX08 Brushed DC Motor Driver IC (SOP-8) — variant as selected
